Why do that? Is it against the rules for two or more people to share an e-mail address? Yeah, I know how easy it is to create other e-mail addresses too, and I assume that's what'll happen here. Still, some people share e-mail accounts to make it easier for them. I would hope you did a little detective work first before deleting the account. Such as determining if only one person was using each, or if both accounts were activated at the same time or not. And any other clues that would indicate cheating to get extra play in.